This Charadrius plover was at Corpus Christi on July 28,
2005; note the black
surrounding the gape-point on both sides of the bill; the bill
pattern and shape are better for SEPL but in-range for CRPL:

The first pic above is hard for me to interpret - is there webbing between the inner and central toe? the second pic above - with two zoom versions below - suggests that there is no webbing between the inner and central tones, but the first pic above seems to show a large web between the central/outer toes on the rear foot - ?

- and this pic also suggests there is no webbing on theinner side of the foot:

below is a more-typical SEPL at the same location for comparison with the bird above: